On Wednesday, 8 March 2017 18:45:05 UTC, Adam Funk wrote:
Well, I had one hand on a spanner on the nut that I was loosening, &
the other one on a spanner on the hex end of the flexible connector,
so I didn't have any more hands left to hold the service valve body &
its top nut.

Why can't compression fittings come with lugs so they can be screwed to the wall, to stop them wobbling when the nuts are tightened?

Owain